The first Swiss hydrogen filling station

The production process involves using an electrolyser to turn water and electricity into hydrogen. When electricity is passed through water, the water splits into its components, hydrogen and oxygen. Two high-pressure compressors pressurise the hydrogen to at least 410 bar. It is then stored in high-pressure accumulators. The hydrogen can eventually be used to fill the fuel cell postbuses fully automatically at the filling pump at a pressure of up to 350 bar. To power the vehicles the hydrogen in the fuel cells is turned back into electricity by combining it with oxygen in a controlled manner. The function of the hydrogen is to store electricity.

Electricity from renewable energy sources

100% of the hydrogen used to fill the fuel cell postbuses is obtained from renewable energy sources such as hydroelectricity, solar power, wind power and biomass energy.